One vertex per element, one color per generator, with an edge from x to x·s.
(2,6)(3,7)(10,13)(11,15)(18,21)(19,23)(25,26,29,30)(27,28,31,32)(1,2)(3,8)(4,7)(5,6)(11,15)(14,16)(17,18,20,21)(19,24,23,22)(26,30)(28,32)(2,6)(4,8)(9,10)(11,14)(12,13)(15,16)(17,18)(19,24)(20,21)(22,23)(25,27,29,31)(26,28,30,32)(1,3)(2,4)(5,7)(6,8)(9,10)(11,14)(12,13)(15,16)(17,18)(19,24)(20,21)(22,23)(25,28,29,32)(26,27,30,31)(1,4)(2,7)(3,6)(5,8)(9,11)(10,14)(12,15)(13,16)(17,19)(18,22)(20,23)(21,24)(25,27)(26,28)(29,31)(30,32) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.